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package com.spring.boxes.redis.lock.redisson;

import com.spring.boxes.redis.lock.support.AbstractLockTemplate;
import org.redisson.api.RLock;
import org.redisson.api.RedissonClient;

import java.util.concurrent.TimeUnit;

import lombok.extern.slf4j.Slf4j;

@Slf4j
public class RedissonLockTemplate extends AbstractLockTemplate {

    private final RedissonClient redissonClient;

    public RedissonLockTemplate(RedissonClient redissonClient) {
        this.redissonClient = redissonClient;
    }

    @Override
    public boolean tryLock(String lockKey, long waitTime, long leaseTime) {
        boolean success;
        try {
            RLock lock = redissonClient.getLock(lockKey);
            success = lock.tryLock(waitTime, leaseTime, TimeUnit.MILLISECONDS);
        } catch (Throwable e) {
            String error = String.format("LOCK FAILED: key=%s||tryLockTime=%s||lockExpiredTime=%s", lockKey, waitTime, leaseTime);
            throw new IllegalStateException(error, e);
        }
        return success;
    }

    @Override
    public void unlock(String lockKey) {
        try {
            RLock lock = redissonClient.getLock(lockKey);
            if (lock != null && lock.isHeldByCurrentThread()) {
                lock.unlock();
            }
        } catch (Throwable e) {
            String error = String.format("UNLOCK FAILED: key=%s", lockKey);
            throw new IllegalStateException(error, e);
        }
    }

    public boolean isLocked(String lockName) {
        return redissonClient.getLock(lockName).isLocked();
    }

    public boolean isHeldByCurrentThread(String lockName) {
        return redissonClient.getLock(lockName).isHeldByCurrentThread();
    }

}